py$(PYV): remove tox env folder .tox/py$(PYV)
py$(PYV): commands[0]> python -m pytest
============================= test session starts ==============================
platform sunos5 -- Python $(PYTHON_VERSION).X -- $(@D)/.tox/py$(PYV)/bin/python
cachedir: .tox/py$(PYV)/.pytest_cache
rootdir: $(@D)
configfile: pytest.ini
collecting ... collected 6 items

docs/conf.py::mypy PASSED
docs/conf.py::mypy-status PASSED
jaraco/env.py::mypy PASSED
jaraco/env.py::env.Check PASSED
.::project PASSED
.::project PASSED

===================================== mypy =====================================

Success: no issues found in 2 source files
======== 6 passed ========
  py$(PYV): OK
  congratulations :)